# Validation

You can apply a set of custom validations against any of the form fields that accept input. The validation rules are provided by VeeValidate and there are a large set of available validations that can be chained together. To chain validations together separate them with a pipe sign |

## VeeValidate

[VeeValidate](https://logaretm.github.io/vee-validate/) is used for validations. You have a wealth of configurable validations that can be chained together. A full listing of validations can be [`found here`](https://logaretm.github.io/vee-validate/api/rules.html).

## Example Rules

| Rule                     | Description                                                                                                                                                                                                                               |
| ------------------------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `required\|min:5`        |                                                                                                                                                                                                                                           |
| `required\|between:1,11` | Required and the field under validation must have a numeric value bounded by a minimum value and a maximum value.                                                                                                                         |
| `digits:3`               | The field under validation must be numeric and have the specified number of digits.                                                                                                                                                       |
| `email`                  | The field under validation must be a valid email.                                                                                                                                                                                         |
| `oneOf:1,2,3`            | The field under validation must have a value that is in the specified list. **Uses double equals** for checks.                                                                                                                            |
| `is:CONFIRM`             | The field under validation must be equal to the first argument passed, uses `===` for equality checks. Note that using the string format will cause any arguments to be parsed as strings, so use the object format when using this rule. |
| `max:4`                  | The field under validation length may not exceed the specified length.                                                                                                                                                                    |
| `max_value:4`            | The field under validation must be a numeric value and must not be greater than the specified value.                                                                                                                                      |
| `min:4`                  | The field under validation length should not be less than the specified length.                                                                                                                                                           |
| `min_value:4`            | The field under validation must be a numeric value and must not be less than the specified value.                                                                                                                                         |
| `numeric`                | The field under validation must only consist of numbers.                                                                                                                                                                                  |
| `regex: /^[0-9]+$/`      | The field under validation must match the specified regular expression.                                                                                                                                                                   |
| `required`               | The field under validation must have a non-empty value. By default, all validators pass the validation if they have "empty values" unless they are required. Those empty values are: empty strings, undefined, null, empty arrays.        |
| `required_if:country,US` | The field under validation must have a non-empty value **only if** the target field (first argument) is set to one of the specified values (other arguments).                                                                             |

![](https://4062709520-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-La71Iy76rotlqbCOWoQ%2F-LsbkbZFjBahhgTs3M3t%2F-Lsbn3C0D0DtJO7s_7DR%2Fimage.png?alt=media\&token=5299c991-b5e8-40ec-84fb-a6ebd885dc05)